Dirrell (24-0, 21 knockouts), is the younger brother of fellow super middleweight contender Andre Dirrell, will be after his 10th consecutive knockout victory against an opponent to be determined. He has not been in the ring since scoring a fourth-round stoppage of Renan St. Juste in December of 2011, which made him the WBC’s No. 1 contender.

The accident marked the second career setback for Dirrell. He was diagnosed with non-Hodgkin’s lymphoma shortly after he stopped James Hopkins in December 2006 and didn’t return to the ring until October 2008, when he decisioned Andy Mavros over four rounds. Dirrell said he was motivated to win a title after having survived cancer.

Diaz, a junior featherweight from South El Monte, Calif., will meet Puerto Rico’s Eric Gotay (3-1, 1 KO), while Spence, of Dallas, will face an opponent to be determined in a junior middleweight bout.

Promoted by Golden Boy, the card featuring Dirrell and Orozco will air over the course of three hours on Fox Sports Networks and Fox Deportes and allow event guests access to a new, socially dynamic nightlife experience curated by a live DJ, dancers, strolling mariachis and an interactive gaming pit.

RAYMUNDO BELTRAN DECISIONS ALEJANDO RODRIGUEZ

Lightweight Raymundo Beltran (28-6, 17 KOs) scored a unanimous decision over Alejandro Rodriguez (19-10, 11 KOs) on Saturday night in a Top Rank-promoted show at the Erwin Center in Austin, Texas.

Beltran’s past two victories were by majority and unanimous decision over Hank Lundy and Ji-Hoon Kim in July and December, respectively.

“I felt great…I honestly feel like I’m getting stronger every day. My opponent was lucky we fought when we did,” said Fox.

“Because another week or so and I’d be even more dangerous. I truly feel that way. My training camps aren’t a chore to me, I’m actually excited every day in the gym to see how far I progress day to day.”

Fox, of Forestville, Md., was coming off a unanimous-decision victory over Greg Hackett in March that followed January’s unanimous decision win over Julius Kennedy, with each of his past two triumphs taking place at The Rosecroft Raceway in Fort Washington, Md.